# 11. Cluster Reference

As of 2.0 CouchDB now have two modes of operations:
  - Standalone
  - Cluster

This part of the documentation is about setting up and maintain a CouchDB cluster.

- 11.1. Setup
  - 11.1.1. Firewall
  - 11.1.2. The Cluster Setup Wizard
  - 11.1.3. The Cluster Setup Api
- 11.2. Theory
- 11.3. Node Management
  - 11.3.1. Adding a node
  - 11.3.2. Removing a node
- 11.4. Database Management
  - 11.4.1. Creating a database
  - 11.4.2. Deleteing a database
  - 11.4.3. Placing a database on specific nodes
- 11.5. Sharding
  - 11.5.1. Scaling out
  - 11.5.2. Moving Shards
  - 11.5.3. Views
  - 11.5.4. Reshard? No, Preshard!